Sudden crashes, yay!

Makefile

@@ -16,12 +16,9 @@ clean:
 	find . -type f -name '*.dylib' -delete
 	find . -type f -name '*.dill' -delete
 
-%-run: % example/main.dart
+%-run: % example/main.dill
 	dart example/main.dill
 
-example/main.dill: ./**/*.dart
-	dart --snapshot="$@" example/main.dart
-
 mac: libangel_wings.dylib
 
 linux: lib/src/libangel_wings.so
@@ -42,3 +39,6 @@ lib/src/libangel_wings.dylib: $(objects)
 
 %.o: %.cc lib/src/angel_wings.h %.h
 	$(CXX) $(CXXFLAGS) -c -o $@ $<
+
+%.dill: %.dart
+	dart --snapshot="$@" $<

benchmark/empty.dart

@@ -0,0 +1,23 @@
+import 'dart:async';
+import 'dart:io';
+import 'package:angel_framework/angel_framework.dart';
+import 'util.dart';
+
+const AngelBenchmark emptyBenchmark = _EmptyBenchmark();
+
+main() => runBenchmarks([emptyBenchmark]);
+
+class _EmptyBenchmark implements AngelBenchmark {
+  const _EmptyBenchmark();
+
+  @override
+  String get name => 'empty';
+
+  @override
+  FutureOr<void> rawHandler(HttpRequest req, HttpResponse res) {
+    return res.close();
+  }
+
+  @override
+  void setupAngel(Angel app) {}
+}

benchmark/util.dart

@@ -0,0 +1,110 @@
+import 'dart:async';
+import 'dart:io';
+import 'dart:isolate';
+import 'package:angel_framework/angel_framework.dart';
+import 'package:angel_framework/http.dart';
+import 'package:angel_wings/angel_wings.dart';
+import 'package:io/ansi.dart';
+import 'package:pedantic/pedantic.dart';
+import 'package:tuple/tuple.dart';
+
+Future<Process> _runWrk(
+    {ProcessStartMode mode = ProcessStartMode.inheritStdio}) async {
+  return await Process.start('wrk', ['http://localhost:$testPort'], mode: mode);
+}
+
+Future<void> _warmUp() async {
+  var wrk = await _runWrk();
+  await wrk.exitCode;
+  // await wrk.stderr.drain();
+  // await wrk.stdout.drain();
+}
+
+Future _10s() => Future.delayed(Duration(seconds: 10));
+
+const testPort = 8877;
+
+Future<void> runBenchmarks(Iterable<AngelBenchmark> benchmarks,
+    {Iterable<String> factories = const [
+      // 'angel_http',
+      'angel_wings',
+    ]}) async {
+  for (var benchmark in benchmarks) {
+    print(magenta.wrap('Entering benchmark: ${benchmark.name}'));
+
+    // // Run dart:io
+    // print(lightGray.wrap('Booting dart:io server (waiting 10s)...'));
+    // var isolates = <Isolate>[];
+    // for (int i = 0; i < Platform.numberOfProcessors; i++) {
+    //   isolates.add(await Isolate.spawn(_httpIsolate, benchmark));
+    // }
+
+    // await _10s();
+    // print(lightGray.wrap('Warming up dart:io server...'));
+    // await _warmUp();
+
+    // stdout
+    //   ..write(lightGray.wrap('Now running `wrk` for '))
+    //   ..write(cyan.wrap(benchmark.name))
+    //   ..writeln(lightGray.wrap(' (waiting 10s)...'));
+    // var wrk = await _runWrk(mode: ProcessStartMode.inheritStdio);
+    // await wrk.exitCode;
+    // isolates.forEach((i) => i.kill(priority: Isolate.immediate));
+
+    // Run Angel HTTP, Wings
+    for (var fac in factories) {
+      print(lightGray.wrap('Booting $fac server...'));
+
+      var isolates = <Isolate>[];
+      for (int i = 0; i < Platform.numberOfProcessors; i++) {
+        isolates
+            .add(await Isolate.spawn(_angelIsolate, Tuple2(benchmark, fac)));
+      }
+
+      await _10s();
+      print(lightGray.wrap('Warming up $fac server...'));
+      await _warmUp();
+      stdout
+        ..write(lightGray.wrap('Now running `wrk` for '))
+        ..write(cyan.wrap(benchmark.name))
+        ..writeln(lightGray.wrap('...'));
+      var wrk = await _runWrk(mode: ProcessStartMode.inheritStdio);
+      await wrk.exitCode;
+    }
+  }
+
+  exit(0);
+}
+
+void _httpIsolate(AngelBenchmark benchmark) {
+  Future(() async {
+    var raw = await HttpServer.bind(InternetAddress.loopbackIPv4, testPort,
+        shared: true);
+    raw.listen((r) => benchmark.rawHandler(r, r.response));
+  });
+}
+
+void _angelIsolate(Tuple2<AngelBenchmark, String> args) {
+  Future(() async {
+    var app = Angel();
+    Driver driver;
+
+    if (args.item2 == 'angel_http')
+      driver = AngelHttp.custom(app, startShared);
+    else if (args.item2 == 'angel_wings')
+      driver = AngelWings.custom(app, startSharedWings);
+
+    await app.configure(args.item1.setupAngel);
+    await driver.startServer(InternetAddress.loopbackIPv4, testPort);
+  });
+}
+
+abstract class AngelBenchmark {
+  const AngelBenchmark();
+
+  String get name;
+
+  FutureOr<void> setupAngel(Angel app);
+
+  FutureOr<void> rawHandler(HttpRequest req, HttpResponse res);
+}

example/main.dart

@@ -1,3 +1,4 @@
+import 'dart:io';
 import 'package:angel_framework/angel_framework.dart';
 import 'package:angel_static/angel_static.dart';
 import 'package:angel_wings/angel_wings.dart';
@@ -16,9 +17,13 @@ main() async {
   app.mimeTypeResolver.addExtension('yaml', 'text/x-yaml');
 
   app.get('/', (req, res) => 'WINGS!!!');
+  app.post('/', (req, res) async {
+    await req.parseBody();
+    return req.bodyAsMap;
+  });
   app.fallback(vDir.handleRequest);
   app.fallback((req, res) => throw AngelHttpException.notFound());
 
-  await wings.startServer('127.0.0.1', 3000);
+  await wings.startServer(InternetAddress.loopbackIPv6, 3000);
   print('Listening at ${wings.uri}');
 }

example/shared.dart

@@ -0,0 +1,22 @@
+import 'package:angel_framework/angel_framework.dart';
+import 'package:angel_wings/angel_wings.dart';
+
+main() async {
+  var app = Angel();
+  var wings1 = AngelWings.custom(app, startSharedWings);
+  var wings2 = AngelWings.custom(app, startSharedWings);
+  var wings3 = AngelWings.custom(app, startSharedWings);
+  var wings4 = AngelWings.custom(app, startSharedWings);
+  await wings1.startServer('127.0.0.1', 3000);
+  await wings2.startServer('127.0.0.1', 3000);
+  await wings3.startServer('127.0.0.1', 3000);
+  await wings4.startServer('127.0.0.1', 3000);
+  print(wings1.uri);
+  print(wings2.uri);
+  print(wings3.uri);
+  print(wings4.uri);
+  await wings1.close();
+  await wings2.close();
+  await wings3.close();
+  await wings4.close();
+}

lib/src/bind.cc

@@ -1,3 +1,4 @@
+#include <iostream>
 #include <vector>
 #include "angel_wings.h"
 #include "wings_socket.h"
@@ -32,7 +33,7 @@ void Dart_WingsSocket_bindIPv6(Dart_NativeArguments arguments)
 void wingsReturnBound(Dart_NativeArguments arguments, WingsSocket *socket)
 {
     Dart_Port sendPort;
-    HandleError(Dart_SendPortGetId(socket->getInfo().sendPortHandle, &sendPort));
+    HandleError(Dart_SendPortGetId(Dart_GetNativeArgument(arguments, 5), &sendPort));
     socket->incrRef(sendPort);
     auto ptr = (uint64_t)socket;
     Dart_Handle ptrHandle = Dart_NewIntegerFromUint64(ptr);
@@ -44,9 +45,11 @@ WingsSocket *wingsFindSocket(Dart_NativeArguments arguments, const WingsSocketIn
     // Find an existing server, if any.
     if (info.shared)
     {
+        // std::cout << info.address << std::endl;
+        // std::cout << globalSocketList.size() << std::endl;
         for (auto *socket : globalSocketList)
         {
-            if (socket->getInfo() == info)
+            if (info.equals(socket->getInfo()))
             {
                 return socket;
             }

lib/src/http.cc

@@ -12,26 +12,45 @@ void Dart_WingsSocket_parseHttp(Dart_NativeArguments arguments)
     Dart_SetReturnValue(arguments, send_port);
 }
 
+struct wingsHttp
+{
+    Dart_Port port;
+    std::string lastHeader;
+};
+
 void wingsHttpCallback(Dart_Port dest_port_id, Dart_CObject *message)
 {
     int64_t fd = -1;
     Dart_Port outPort = message->value.as_array.values[0]->value.as_send_port.id;
     Dart_CObject *fdArg = message->value.as_array.values[1];
 
-#define thePort (*((Dart_Port *)parser->data))
+    wingsHttp httpData = {outPort};
-#define sendInt(n)                  \
+
-    Dart_CObject obj;               \
+#define theStruct (*((wingsHttp *)parser->data))
-    obj.type = Dart_CObject_kInt64; \
+#define thePort theStruct.port
-    obj.value.as_int64 = (n);       \
+#define sendInt(n)                       \
-    Dart_PostCObject(thePort, &obj);
+    {                                    \
-#define sendString()                               \
+        Dart_CObject obj;                \
-    if (length > 0)                                \
+        obj.type = Dart_CObject_kInt64;  \
-    {                                              \
+        obj.value.as_int64 = (n);        \
-        std::string str(at, length);               \
+        Dart_PostCObject(thePort, &obj); \
-        Dart_CObject obj;                          \
+    }
-        obj.type = Dart_CObject_kString;           \
+#define sendString(n)                                  \
-        obj.value.as_string = (char *)str.c_str(); \
+    if (length > 0)                                    \
-        Dart_PostCObject(thePort, &obj);           \
+    {                                                  \
+        Dart_CObject typeObj;                          \
+        typeObj.type = Dart_CObject_kInt32;            \
+        typeObj.value.as_int32 = (n);                  \
+        std::string str(at, length);                   \
+        Dart_CObject strObj;                           \
+        strObj.type = Dart_CObject_kString;            \
+        strObj.value.as_string = (char *)str.c_str();  \
+        Dart_CObject *values[2] = {&typeObj, &strObj}; \
+        Dart_CObject out;                              \
+        out.type = Dart_CObject_kArray;                \
+        out.value.as_array.length = 2;                 \
+        out.value.as_array.values = values;            \
+        Dart_PostCObject(thePort, &out);               \
     }
 
     if (fdArg->type == Dart_CObject_kInt32)
@@ -52,17 +71,24 @@ void wingsHttpCallback(Dart_Port dest_port_id, Dart_CObject *message)
         };
 
         settings.on_headers_complete = [](http_parser *parser) {
-            {
+            Dart_CObject type;
-                sendInt(0);
+            type.type = Dart_CObject_kInt32;
-            }
+            type.value.as_int32 = 2;
-            {
+            Dart_CObject value;
-            sendInt(parser->method);
+            value.type = Dart_CObject_kInt32;
-            }
+            value.value.as_int32 = parser->method;
+            Dart_CObject *values[2] = {&type, &value};
+            Dart_CObject out;
+            out.type = Dart_CObject_kArray;
+            out.value.as_array.length = 2;
+            out.value.as_array.values = values;
+            Dart_PostCObject(thePort, &out);
+            sendInt(100);
             return 0;
         };
 
         settings.on_message_complete = [](http_parser *parser) {
-            sendInt(1);
+            sendInt(200);
             return 0;
         };
 
@@ -75,22 +101,46 @@ void wingsHttpCallback(Dart_Port dest_port_id, Dart_CObject *message)
         };
 
         settings.on_url = [](http_parser *parser, const char *at, size_t length) {
-            sendString();
+            sendString(0);
             return 0;
         };
 
         settings.on_header_field = [](http_parser *parser, const char *at, size_t length) {
-            sendString();
+            theStruct.lastHeader = std::string(at, length);
             return 0;
         };
 
         settings.on_header_value = [](http_parser *parser, const char *at, size_t length) {
-            sendString();
+            if (!theStruct.lastHeader.empty())
+            {
+                std::string vStr(at, length);
+                Dart_CObject type;
+                type.type = Dart_CObject_kInt32;
+                type.value.as_int32 = 1;
+                Dart_CObject name;
+                name.type = Dart_CObject_kString;
+                name.value.as_string = (char *)theStruct.lastHeader.c_str();
+                Dart_CObject value;
+                value.type = Dart_CObject_kString;
+                value.value.as_string = (char *)vStr.c_str();
+                Dart_CObject *values[3] = {&type, &name, &value};
+                Dart_CObject out;
+                out.type = Dart_CObject_kArray;
+                out.value.as_array.length = 3;
+                out.value.as_array.values = values;
+                Dart_PostCObject(thePort, &out);
+                theStruct.lastHeader.clear();
+            }
             return 0;
         };
 
         settings.on_body = [](http_parser *parser, const char *at, size_t length) {
-            sendString();
+            Dart_CObject obj;
+            obj.type = Dart_CObject_kTypedData;
+            obj.value.as_typed_data.type = Dart_TypedData_kUint8;
+            obj.value.as_typed_data.length = length;
+            obj.value.as_typed_data.values = (uint8_t *)at;
+            Dart_PostCObject(thePort, &obj);
             return 0;
         };
 
@@ -101,7 +151,7 @@ void wingsHttpCallback(Dart_Port dest_port_id, Dart_CObject *message)
         // http_parser parser;
         auto *parser = (http_parser *)malloc(sizeof(http_parser));
         http_parser_init(parser, HTTP_BOTH);
-        parser->data = &outPort;
+        parser->data = &httpData;
 
         while ((recved = recv(fd, buf, len, 0)) >= 0)
         {

lib/src/util.cc

@@ -159,5 +159,13 @@ void Dart_WingsSocket_closeDescriptor(Dart_NativeArguments arguments)
 
 void Dart_WingsSocket_close(Dart_NativeArguments arguments)
 {
-    // TODO: Actually do something.
+    Dart_Port port;
+    uint64_t ptr;
+    Dart_Handle pointerHandle = Dart_GetNativeArgument(arguments, 0);
+    Dart_Handle sendPortHandle = Dart_GetNativeArgument(arguments, 1);
+    HandleError(Dart_IntegerToUint64(pointerHandle, &ptr));
+    HandleError(Dart_SendPortGetId(sendPortHandle, &port));
+
+    auto *socket = (WingsSocket *)ptr;
+    socket->decrRef(port);
 }

lib/src/wings_driver.dart

@@ -7,13 +7,17 @@ import 'wings_request.dart';
 import 'wings_response.dart';
 import 'wings_socket.dart';
 
+Future<WingsSocket> startSharedWings(dynamic addr, int port) {
+  return WingsSocket.bind(addr, port, shared: true);
+}
+
 class AngelWings extends Driver<WingsClientSocket, int, WingsSocket,
     WingsRequestContext, WingsResponseContext> {
   factory AngelWings(Angel app) {
-    return AngelWings._(app, WingsSocket.bind);
+    return AngelWings.custom(app, WingsSocket.bind);
   }
 
-  AngelWings._(
+  AngelWings.custom(
       Angel app, Future<WingsSocket> Function(dynamic, int) serverGenerator)
       : super(app, serverGenerator);
 
@@ -24,6 +28,12 @@ class AngelWings extends Driver<WingsClientSocket, int, WingsSocket,
     }
   }
 
+  @override
+  Future<WingsSocket> close() async {
+    await server?.close();
+    return super.close();
+  }
+
   @override
   Future closeResponse(int response) {
     closeNativeSocketDescriptor(response);

lib/src/wings_request.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 import 'dart:io';
 import 'dart:isolate';
+import 'dart:typed_data';
 import 'package:angel_container/angel_container.dart';
 import 'package:angel_framework/angel_framework.dart';
 import 'package:mock_request/mock_request.dart';
@@ -94,52 +95,86 @@ class WingsRequestContext extends RequestContext<WingsClientSocket> {
   }
 
   static Future<WingsRequestContext> from(Angel app, WingsClientSocket socket) {
-    var state = _ParseState.url;
+    // var state = _ParseState.url;
     var c = Completer<WingsRequestContext>();
     var recv = RawReceivePort();
     var rq = WingsRequestContext._(app, socket, recv);
     rq._remoteAddress = socket.remoteAddress;
-    String lastHeader;
+    var ct = StreamController();
-    recv.handler = (e) {
+    recv.handler = ct.add;
-      if (state == _ParseState.url) {
+    recv.handler = (ee) {
-        rq._uri = Uri.parse(e as String);
+      if (ee is Uint8List) {
-        var path = rq._uri.path.replaceAll(_straySlashes, '');
+        if (!rq._body.isClosed) rq._body.add(ee);
-        if (path.isEmpty) path = '/';
+      } else if (ee is List) {
-        rq._path = path;
+        var type = ee[0] as int;
-        state = _ParseState.headerField;
+
-      } else if (state == _ParseState.headerField) {
+        if (type == 2) {
-        if (e == 0) {
+          rq._method = methodToString(ee[1] as int);
-          state = _ParseState.method;
         } else {
-          lastHeader = e as String; //Uri.decodeFull(e as String);
+          var value = ee[1] as String;
-          state = _ParseState.headerValue;
+
-        }
+          if (type == 0) {
-      } else if (state == _ParseState.headerValue) {
+            rq._uri = Uri.parse(value);
-        if (e == 0) {
+            var path = rq._uri.path.replaceAll(_straySlashes, '');
-          state = _ParseState.method;
+            if (path.isEmpty) path = '/';
-        } else {
+            rq._path = path;
-          var value = e as String; //Uri.decodeFull(e as String);
+          } else if (type == 1) {
-          if (lastHeader != null) {
+            var k = value, v = ee[2] as String;
-            if (lastHeader == 'cookie') {
+            if (k == 'cookie') {
-              rq.__cookies.add(Cookie.fromSetCookieValue(value));
+              rq.__cookies.add(Cookie.fromSetCookieValue(v));
             } else {
-              rq._headers.add(lastHeader, value);
+              rq._headers.add(k, v);
             }
-            lastHeader = null;
+          } else {
+            // print("h: $ee');");
           }
         }
-        state = _ParseState.headerField;
+      } else if (ee == 100) {
-      } else if (state == _ParseState.method) {
+        // Headers done, just listen for body.
-        rq._method = methodToString(e as int);
-        state = _ParseState.body;
         c.complete(rq);
-      } else if (state == _ParseState.body) {
+      } else if (ee == 200) {
-        if (e == 1) {
+        // Message complete.
-          rq._body.close();
+        rq._body.close();
-        } else {
-          rq._body.add(e as List<int>);
-        }
       }
+      // if (state == _ParseState.url) {
+      //   rq._uri = Uri.parse(e as String);
+      //   var path = rq._uri.path.replaceAll(_straySlashes, '');
+      //   if (path.isEmpty) path = '/';
+      //   rq._path = path;
+      //   state = _ParseState.headerField;
+      // } else if (state == _ParseState.headerField) {
+      //   if (e == 0) {
+      //     state = _ParseState.method;
+      //   } else {
+      //     lastHeader = e as String; //Uri.decodeFull(e as String);
+      //     state = _ParseState.headerValue;
+      //   }
+      // } else if (state == _ParseState.headerValue) {
+      //   if (e == 0) {
+      //     state = _ParseState.method;
+      //   } else {
+      //     var value = e as String; //Uri.decodeFull(e as String);
+      //     if (lastHeader != null) {
+      //       if (lastHeader == 'cookie') {
+      //         rq.__cookies.add(Cookie.fromSetCookieValue(value));
+      //       } else {
+      //         rq._headers.add(lastHeader, value);
+      //       }
+      //       lastHeader = null;
+      //     }
+      //   }
+      //   state = _ParseState.headerField;
+      // } else if (state == _ParseState.method) {
+      //   rq._method = methodToString(e as int);
+      //   state = _ParseState.body;
+      //   c.complete(rq);
+      // } else if (state == _ParseState.body) {
+      //   if (e == 1) {
+      //     rq._body.close();
+      //   } else {
+      //     rq._body.add(e as List<int>);
+      //   }
+      // }
     };
     wingsParseHttp().send([recv.sendPort, socket.fileDescriptor]);
     return c.future;

lib/src/wings_socket.cc

@@ -5,17 +5,22 @@ using namespace wings;
 
 std::vector<WingsSocket *> wings::globalSocketList;
 
-bool WingsSocketInfo::operator==(const WingsSocketInfo &other) const
+bool WingsSocketInfo::equals(const WingsSocketInfo &right) const
 {
-    return (strcmp(address, other.address) == 0) &&
+    // std::cout << address << " vs " << right.address << std::endl;
-           port == other.port;
+    // std::cout << port << " vs " << right.port << std::endl;
+    return (strcmp(address, right.address) == 0) &&
+           port == right.port;
 }
 
 WingsSocket::WingsSocket(sa_family_t family, int sockfd, const WingsSocketInfo &info)
     : sockfd(sockfd), info(info), family(family)
 {
+    index = 0;
+    open = true;
     refCount = 0;
     workerThread = nullptr;
+    this->info.address = strdup(info.address);
 }
 
 void WingsSocket::incrRef(Dart_Port port)
@@ -24,6 +29,31 @@ void WingsSocket::incrRef(Dart_Port port)
     sendPorts.push_back(port);
 }
 
+void WingsSocket::decrRef(Dart_Port port)
+{
+    auto it = std::find(sendPorts.begin(), sendPorts.end(), port);
+
+    if (it != sendPorts.end())
+    {
+        sendPorts.erase(it);
+    }
+
+    refCount--;
+
+    if (refCount <= 0 && open)
+    {
+        close(sockfd);
+    }
+}
+
+Dart_Port WingsSocket::nextPort()
+{
+    if (index >= sendPorts.size())
+        index = 0;
+    Dart_Port port = sendPorts.at(index++);
+    return port;
+}
+
 const WingsSocketInfo &WingsSocket::getInfo() const
 {
     return info;
@@ -59,6 +89,7 @@ void WingsSocket::threadCallback(Dart_Port dest_port_id,
     Dart_Port outPort = message->value.as_array.values[0]->value.as_send_port.id;
     Dart_CObject *ptrArg = message->value.as_array.values[1];
 
+    // If there are no listeners, quit.
     if (ptrArg->type == Dart_CObject_kInt32)
     {
         auto as64 = (int64_t)ptrArg->value.as_int32;
@@ -71,6 +102,11 @@ void WingsSocket::threadCallback(Dart_Port dest_port_id,
 
     if (socket != nullptr)
     {
+        if (socket->sendPorts.empty())
+        {
+            return;
+        }
+
         int sock;
         unsigned long index = 0;
         sockaddr addr;
@@ -106,14 +142,11 @@ void WingsSocket::threadCallback(Dart_Port dest_port_id,
             obj.value.as_array.length = 2;
             obj.value.as_array.values = values;
 
-            Dart_PostCObject(outPort, &obj);
+            // Dart_PostCObject(outPort, &obj);
             // Dispatch the fd to the next listener.
-            // auto &ports = socket->sendPorts;
+            auto port = socket->nextPort();
-            // Dart_Port port = ports.at(index++);
+            // Dart_PostCObject(port, &obj);
-            // if (index >= ports.size())
+            Dart_PostCObject(outPort, &obj);
-            //     index = 0;
-            // Dart_Handle intHandle = Dart_NewInteger(sock);
-            // Dart_Post(port, intHandle);
         }
     }
 }

lib/src/wings_socket.dart

@@ -18,7 +18,7 @@ int bindWingsIPv6ServerSocket(
     bool shared,
     int backlog,
     bool v6Only,
-    SendPort sendPort) native 'Dart_WingsSocket_bindIPV6';
+    SendPort sendPort) native 'Dart_WingsSocket_bindIPv6';
 
 String getWingsServerSocketAddress(int pointer)
     native 'Dart_WingsSocket_getAddress';
@@ -33,7 +33,8 @@ void closeNativeSocketDescriptor(int fd)
 
 SendPort wingsSocketListen(int pointer) native 'Dart_WingsSocket_listen';
 
-void closeWingsSocket(int pointer) native 'Dart_WingsSocket_close';
+void closeWingsSocket(int pointer, SendPort sendPort)
+    native 'Dart_WingsSocket_close';
 
 SendPort wingsParseHttp() native 'Dart_WingsSocket_parseHttp';
 
@@ -120,7 +121,7 @@ class WingsSocket extends Stream<WingsClientSocket> {
   Future<void> close() async {
     if (_open) {
       _open = false;
-      closeWingsSocket(_pointer);
+      closeWingsSocket(_pointer, _recv.sendPort);
       _recv.close();
       await _ctrl.close();
     }

lib/src/wings_socket.h

@@ -22,7 +22,7 @@ struct WingsSocketInfo
   uint64_t backlog;
   bool v6Only;
   Dart_Handle sendPortHandle;
-  bool operator==(const WingsSocketInfo &other) const;
+  bool equals(const WingsSocketInfo &right) const;
 };
 
 class WingsSocket
@@ -30,16 +30,20 @@ class WingsSocket
 public:
   WingsSocket(sa_family_t family, int sockfd, const WingsSocketInfo &info);
   void incrRef(Dart_Port port);
+  void decrRef(Dart_Port port);
   const WingsSocketInfo &getInfo() const;
   void start(Dart_NativeArguments arguments);
   int getFD() const;
   sa_family_t getFamily() const;
+  Dart_Port nextPort();
 
 private:
   static void threadCallback(Dart_Port dest_port_id, Dart_CObject *message);
   WingsSocketInfo info;
+  unsigned long index;
   int sockfd;
   int refCount;
+  bool open;
   sa_family_t family;
   std::unique_ptr<std::thread> workerThread;
   std::vector<Dart_Port> sendPorts;